// yield/fs/poll/watch.hpp

// Copyright (c) 2011 Minor Gordon
// All rights reserved

// This source file is part of the Yield project.

// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of the Yield project nor the
// names of its contributors may be used to endorse or promote products
// derived from this software without specific prior written permission.

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL Minor Gordon BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef _YIELD_FS_POLL_WATCH_HPP_
#define _YIELD_FS_POLL_WATCH_HPP_

#include "yield/fs/path.hpp"
#include "yield/fs/poll/fs_event.hpp"

namespace yield {
class Log;

namespace fs {
namespace poll {
class Watch {
public:
  virtual ~Watch();

public:
  FSEvent::Type get_fs_event_types() const {
    return fs_event_types;
  }

  const Path& get_path() const {
    return path;
  }

protected:
  Watch(FSEvent::Type fs_event_types, Log* log, const Path& path);
  Watch(const Watch&);

protected:
  Log* get_log() const {
    return log;
  }

protected:
  bool want_fs_event_type(FSEvent::Type fs_event_type) {
    return (fs_event_types & fs_event_type) == fs_event_type;
  }

  void log_fs_event(const FSEvent& fs_event) const;

private:
  FSEvent::Type fs_event_types;
  Log* log;
  Path path;
};
}
}
}

#endif
